This paper presents an exploratory study in the context of composition of domain-specific modeling languages (DSMLs). It aims evaluating a composition method using Ecore-based DSMLs based on xText tool. The study was performed applying the method to modelling a composition of DSMLs from the domain of controlled experiments in software engineering. The study consists of four different DSMLs, who...

Skeletal muscle fibers are composed of three structural elements, each contributing a unique aspect of muscle function, yet each 'competing' in a sense for space inside the cell. The volume occupied by myofibrils determines the force of contraction, the volume of sarcoplasmic reticulum sets the rate of onset and relaxation of a fiber's contraction and hence contraction frequency, and the volume...

Meiotic recombination is an important evolutionary force shaping the nucleotide landscape of genomes. For most vertebrates, the frequency of recombination varies slightly or considerably between the sexes (heterochiasmy). In humans, male, rather than female, recombination rate has been found to be more highly correlated with the guanine and cytosine (GC) content across the genome. In the presen...

The Archaea domain is ubiquitously distributed and extremely diverse, however, environmental factors that shape archaeal community structure are not well known. Aquatic environments, including the water column and sediments harbor many new uncultured archaeal species from which metabolic and ecological roles remain elusive. Some environments are especially neglected in terms of archaeal diversi...

QoS–aware service composition and binding are among the most challenging and promising issues for service–oriented architectures. The aim of QoS–aware service composition is to determine the set of services that, once composed, will perform the required functionality, and will best contribute to achieve the level of QoS promised in Service Level Agreements (SLAs). While the existing works focus...

Context-oriented programming (COP) introduces dedicated abstractions for the modularization and dynamic composition of crosscutting context-specific functionality. While existing COP languages offer constructs for control-flow specific composition, they do not yet consider the explicit representation of event-specific context-dependent behavior, for which we observe two distinguishing propertie...

Commodity software components are intrinsically untrustworthy. It is highly insecure to use them directly in mission critical systems. Part of the insecurity can be attributed to the common-used but flawed mechanisms for discretionary access control, which is coarsegrained and based on user’s privileges. Many alternative mechanisms have been investigated to provide mandatory access control that...

Programmers who need high performance currently rely on low-level, architecture-specific programming models (e.g. OpenMP for CMPs, CUDA for GPUs, MPI for clusters). Performance optimization with these frameworks usually requires expertise in the specific programming model and a deep understanding of the target architecture. Domain-specific languages (DSLs) are a promising alternative, allowing ...

Domain Specific Models with graphical syntax play a big role in Model-Driven Software Development, as do model composition tools. Those tools however, often ignore or destroy layout information which is vital for graphical models. We believe that one reason for the insufficient support for layout information in model composition tools is the lack of generic solutions that are easy to adapt for ...

This work presents an experimental study realized at the materials laboratory of the University of M’sila. It consists to vary the percentage of the pozzolanic admixture (waste bricks) in cement by the substitution method (partial replacement of the clinker by the calcined clay). The characteristics of cement at anhydrous state and the hydrated state (chemical composition, specific weight and f...